Toner compositions and processes for making same
First Claim
Patent Images
1. A toner composition comprising:
- a branched amorphous sulfonated polyester resin; and
a crystalline sulfonated polyester resin;
wherein the toner composition possesses a Newtonian loss modulus (G″
) of about 60,000 to about 120,000 Pascal at a temperature of about 65°
C. to about 80°
C. at a shear rate of about 0.05 to about 0.5 hertz and a G″
of about 30 to about 400 Pascal at a temperature of about 150°
C. to about 165°
C. at a shear rate of about 0.05 to about 0.5 hertz; and
wherein the toner composition possesses a storage modulus (G′
) of about 40,000 to about 90,000 Pascal at a temperature of about 65°
C. to about 80°
C. at a shear rate of about 0.05 to about 0.5 hertz and a G′
of about 10 to about 130 Pascal at a temperature of about 150°
C. to about 165°
C. at a shear rate of about 0.05 to about 0.5 hertz.
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Abstract
A toner composition is provider including a branched amorphous polyester resin and a crystalline polyester resin, wherein the toner possesses rheological properties yielding desired characteristics.
61 Citations
27 Claims
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1. A toner composition comprising:
-
a branched amorphous sulfonated polyester resin; and a crystalline sulfonated polyester resin; wherein the toner composition possesses a Newtonian loss modulus (G″
) of about 60,000 to about 120,000 Pascal at a temperature of about 65°
C. to about 80°
C. at a shear rate of about 0.05 to about 0.5 hertz and a G″
of about 30 to about 400 Pascal at a temperature of about 150°
C. to about 165°
C. at a shear rate of about 0.05 to about 0.5 hertz; andwherein the toner composition possesses a storage modulus (G′
) of about 40,000 to about 90,000 Pascal at a temperature of about 65°
C. to about 80°
C. at a shear rate of about 0.05 to about 0.5 hertz and a G′
of about 10 to about 130 Pascal at a temperature of about 150°
C. to about 165°
C. at a shear rate of about 0.05 to about 0.5 hertz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A toner composition comprising:
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a branched amorphous sulfonated polyester resin; and a crystalline sulfonated polyester resin; wherein the toner composition has a Newtonian loss modulus (G″
) of about 60,000 to about 120,000 Pascal at a temperature of about 65°
C. to about 80°
C. at a shear rate of about 0.05 to about 0.5 hertz; andwherein the toner composition has a storage modulus (G′
) of about 40,000 to about 90,000 Pascal at a temperature of about 65°
C. to about 80°
C. at a shear rate of about 0.05 to about 0.5 hertz. - View Dependent Claims (19, 20, 21, 22)
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23. A toner composition comprising:
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a branched amorphous sulfonated polyester resin; and a crystalline sulfonated polyester resin; wherein the toner composition has a Newtonian loss modulus (G″
) of about 30 to about 400 Pascal at a temperature of about 150°
C. to about 165°
C. at a shear rate of about 0.05 to about 0.5 hertz; andwherein the toner composition has a storage modulus (G′
) of about 10 to about 130 Pascal at a temperature of about 150°
C. to about 165°
C. at a shear rate of about 0.05 to about 0.5 hertz. - View Dependent Claims (24, 25, 26, 27)
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Specification